Mechanical refrigeration



Dec. 3, 1929.

C. C. SPREEN MECHANI CAL REFRIGERATI 0N Filed March 8, 1926 Spreen fzzvezz 601' Charles 6.

An ways Patented Dec. 3, 1929 UNITED STATES PATENT OFFICE CHARLES C. SPREEN, OI DETROIT, MICHIGAN, ASSIGNOR TO KELVINATOB CORPORA- TION, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN MECHANICAL REFRIGERATION Application filed March 8, 1926. Serial No. 98,005.

My invention relates to mechanical refrigeration, and is particularly applicable to mechanical refrigeration designed for cooling refrigerator cabinets of the household or store type, and the principal object of my invention is to provide, a new and improved brine tank particularly suitable for such household and store installations. In the-drawings accompanying this specification and forming a lo part of'this application, I have shown, for

purpose of illustration, one form which my invention may assume. In these drawings:

Figure 1 is a general front elevatlon of a refrigerator cabinet showing a brine tank embodying my invention,

Figure 2 is a section through this brine tank parallel to the view of Figure 1 and just wlthin the front wall, while Figure 3 is a horizontal section taken on the line 3--3 of Figure 2. a

The brine tank 11 herein shown is positioned within the cooling compartment of a refrigerator cabinet 13 having in addition a supplemental refrigerated compartment disposed below the cooling compartment 12 and a main refrigerated compartment disposed beside the cooling compartment 12 and the sup lemental refrigerated compartment, the coo ing compartment 12 and the supplemental refrigerated compartment and the main refrigerated compartment being accessible, respectively, through doors 14 and 15 and 16.

The brine tank 11 herein shown comprises side walls 17 a front wall 18, a rear wall 19, a top 20, and a bottom 21, and is provided with two vertically alined tubes 22 extending between the front wall 18 and the rear Wall 19 and each forming, within the confined of the brine tank 11, a recess 23 suitable for the reception of means for the production of artificial ice by the cold of the rine tank 11.

Positioned within this brine tank 11 for the purpose of cooling the brine within the tank is an expansion coil 24 comprising three coils 25 and 26 and 27 disposed respectively in the three verticall alined spaces 28 and 29 and 30 defined by the two vertically alined tubes 22, and comprising also a duct 31 connecting the inlet end of the lower coil 27 to '27 being intentionally positioned between the tubes 22 in order to facilitate remo'valof each coil from the brine tankfor repair and to overcome the difficulties attendant upon such removal when the coil surrounds a tube,'and the connecting ducts 31 and 33 and 34 being disposed all on the same side of the tubes 22 to facilitate withdrawal of the coil 24 as a unit and obviate the difficulties which would attend removal of the unit 24 were the connecting ducts disposed partly on one side of the tubes 22 and partly. on the other side of the tubes 22. 70

From the above description it will be obvious to those skilled in the art that I have provided new and improved brine tank means particularly suitable for mechanical refrigeration of the household and store; type. At the same time, it will also be apparent to those skilled in the art that the particular embodiment of my invention herein shown may be variously changed and modified without departing from the spirit of my inventionor sacrificing the advantages thereof, and it will therefore be understood that the disclosure herein is illustrative only and that my invention is not limited thereto.

I claim: 4

1. In a mechanical refrigerating system, a brine tank provided with at least two vertically alined recesess extending into said tank from a lateral face thereof, each formed to receive a receptacle for the production of artificial ice, and dividing sald brine tank vertically into at least three alined spaces; and a refrigerant expansion unit disposed within said tank and comprising at least two coils each disposed in one-of said spaces.

2. In a mechanical refrigeratin system, a brine tank provided with at feast two vertically alined recesses extending into said artificial ice, and dividing said brine tank vertically into at least three alined spaces; and a refrigerant expansion unit disposed within said tank and comprising at least three coils each disposed in one of said spaces.

3. In a mechanical refrigerating system, a brine tank provided with at least two vertically alined recesses extending through said tank between opposite lateral faces thereof, each formed to receive a receptacle for the production of artificial ice, and dividing said brine tank vertically into at least three alined spaces; and a refrigerant expansion unit disposed within said tank and comprising at least two coils each disposed in one of said spaces.

4. In a mechanical refrigerating system, a brine tank provided with at least two vertically alined recesses extending through said tank between opposite lateral faces thereof, each formed to receive a receptacle for the production of artificial ice, and dividing said brine tank into at least three alined spaces; and a refrigerant-expansion unit disposed within said tank and comprising at least three coils each disposed in one of said spaces. v I

5. In a mechanical refrigerating system, a brine tank provided with a recess extending into said tank from a lateral facethereof, said recess being formed to receive a receptacle for the production of artificial ice, and to divide said brine tank vertically into two spaces; and a refrigerant expansion unit disposed within said tank and comprising coils disposed in one of said spaces and extending substantially the entire length thereof, and connections connecting said coils and all lying on the same side of said recesses.

6. In a mechanical refrigerating system, a brine tank provided with a recess extending through said tank between opposite lateral faces thereof, said recess bein formed to receive a receptacle for the pro notion of artificial ice, and to divide said brine tank vertically into two spaces; and a refrigerant ex pansion unit disposed within said tank and comprising two coils each disposed in one of sald spaces, and connectlons connecting sald coils and all lying on the same side of said' connections connecting said coils and all lying on the same side of said recesses.

8. In a mechanical refrigerating system, a brine tank provided with at least two vertitank between opposite lateral faces t ereof,

each formed to receive a receptacle for the production of artificial ice, and dividing said brine tank vertically into at least three alined spaces; and a refrigerant expansion unit disposed within said tank and comprising at least two coils each disposed in one of said spaces, and connections connecting said coils and all lying on the same side of said recesses.

10. In a mechanical refrigerating system, a brine tank provided with at least two vertically alined recesses extending through said tank between opposite lateral faces thereof, each formed to receive a receptacle for the production of artificial ice, and dividing said rine tank into at least three alined spaces;

and a refrigerant expansion unit disposed within said tank and comprising at least three coils each disposed in one of said spaces, and connections connecting said coils and all lying on the same side of said recesses.

11. In a-mechanical refrigerating system, a brine tank provided with a recess extendin into said tank from a lateral face thereo said recess being formed to receive a receptacle for the production of artificial ice, and to divide said brine tank vertically into two spaces; and a refrigerant expansion unit disposed within said tank and comprisin coils disposed in each of said spaces, sai coils extending substantially the entire length of said spaces and removable from said tank in a direction parallel to said lateral face. 12. In a mechanical refrigerating system, a brine tank provided with a recess extending through said tank between opposite lateral faces thereof, said recess being formed to receive a receptacle for the production of artificial ice, and to divide said brine tank vertically into two spaces; and a refrigerant expansion unit disposed within said tank and comprising two coils each extending substantially the entire length of and disposed in one of said spaces.

In testimony whereof I hereunto aflix my signature.

7 CHARLES C. SPREEN.

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